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Ruling · 2015 · Doha

Rādhāṣṭamī

Monday 21 September2015 · Doha, Baladiyat ad Dawhah, Qatar

Determinatemargin 669 min

In Doha, under the Rashtriya Panchang method. Clear of every threshold by 669 minutes.

Decide it forDohaDelhiKolkataSingaporeSydneyJersey City25°17′ N 51°32′ E · Asia/Qatar · GeoNames 290030

The two middays मध्याह्न

One ghaṭī is 24 minutes

Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Monday 21 September

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:03  11:51 madhyāhna ends
10:1510:3911:0311:2711:5112:1512:39

48 of 48 minutes covered

Midday of Tuesday 22 September

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:03  11:51 madhyāhna ends
10:1510:3911:0311:2711:5112:1512:39

0 of 48 minutes covered

Aṣṭamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided निर्णय

  1. Step 1, Aṅga

    Aṣṭamī runs from 23:54 on Sun 20 Sep to 23:53 on Mon 21 Sep.

    2015-09-20T20:53:34Z → 2015-09-21T20:53:05Z
  2. Step 2, Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:03–11:51 on the 21st, 11:03–11:51 on the 22nd.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
  3. Step 3, Rule

    Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 21st and 0 of 48 on the 22nd.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103
  4. Step 4, Tie-break

    Only one midday qualifies. No tie-break is needed.

    one day qualifies → only-day · margin 40161 s
  5. Step 5, Ruling

    Rādhāṣṭamī, Doha, 2015: Monday 21 September.

    confidence: determinate

Say it like this

In Doha, Rādhāṣṭamī 2015 falls on Monday 21 September. Aṣṭamī runs from 23:54 on Sun 20 Sep to 23:53 on Mon 21 Sep and covers all of madhyāhna that midday.

ahargana.org/doha/festivals/2015/radhashtamipac-rp@2026.1

Who says what

never edited to agree

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 21 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 21 Sep
compat-drikpanchangComparison profileMon 21 Sep
No institution has a recorded ruling for Doha.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

radhashtami · ruleset 2026.3-draft

Month
Bhādrapada, amānta
Pakṣa · aṅga
Śukla · Aṣṭamī
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 103

S 8 Durvastami (purvaviddha — S 8 of saura Bhadra except Bengal), Mahalaksmi vratarambha, Radhastami (madhyahna vyapini) Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

twelve places, west to east · local clocks

PlaceAṣṭamīMadhyāhna 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles13:54 → 13:5312:220 min12:2248 min21 Sep
Chicago15:54 → 15:5312:200 min12:1948 min21 Sep
Jersey City16:54 → 16:5312:250 min12:2548 min21 Sep
Port of Spain16:54 → 16:5311:350 min11:3548 min21 Sep
London21:54 → 21:5312:300 min12:2948 min21 Sep
Durban22:54 → 22:5311:260 min11:2548 min21 Sep
Dubai00:54 → 00:5311:480 min11:4848 min21 Sep
Delhi02:24 → 02:2311:500 min11:5048 min21 Sep
Kolkata02:24 → 02:2311:060 min11:0648 min21 Sep
Singapore04:54 → 04:5312:340 min12:3448 min21 Sep
Sydney06:54 → 06:5311:250 min11:2548 min21 Sep
Suva08:54 → 08:5311:360 min11:3648 min21 Sep
This ruling as JSON · ICS
Profile · tradition
pac-rp@2026.1 · smarta
Rule
radhashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s